Sikaflex

Discussion in 'Solar Power' started by HobbyHarvey, Jun 6, 2018.

  1. HobbyHarvey

    HobbyHarvey Funster

    Joined:
    Jan 10, 2011
    Messages:
    47
    Location:
    South Coast
    Ratings:
    +22
    Morning all, which sikaflex is recommended for bonding solar panel mounts to the motorhome roof, looking at either291i or 292i.
    Also what is the recommended surface preparation for a GRP roof
    Many thanks
    Mike
     
  2. Richard and Ann

    Richard and Ann Funster

    Joined:
    Jan 19, 2014
    Messages:
    1,297
    Location:
    Derbyshire
    Ratings:
    +2,159
    Think I used sikaflex 512 (there was a pic of a caravan on it anyway)
    I wiped the roof with meths and then screwed down through the lot. My roof is aluminium skin though.
     
    • Thanks Thanks x 1
  3. Speve

    Speve Funster

    Joined:
    Jul 29, 2013
    Messages:
    3,279
    Location:
    Salisbury
    Ratings:
    +4,193
    I wouldn’t screw down through the roof the less holes the better I have found Stixall to be very good and cheaper than Sikaflex.(y)(y)(y)
     
    • Thanks Thanks x 1
  4. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    30,279
    Location:
    Ayrshire
    Ratings:
    +31,285
    Neither ..


    This is the instructions from Alden

    I followed them to fix an Alden AS4 auto dish , a lot heaver than a solar panel.. no problems

    Sika 252 for fixing sat dish or solar panels.


    Glueing the external unit



    1. Use a pencil to mark the place of the unit on the roof.
    2. Sand the roof surface with sandpaper.
    3. Clean each surface with a thinner.
    4. Spread Sika-Aktivator on the sanded surface.
      Leave to dry for 15 to 20 minutes.
    5. Glue generously the base of the unit with SikaFlex 252 then press slightly on the unit. Layer of glue: ± 3 mm.


    1. To accelerate the polymerisation, spray a little water on the visible parts of the glue.
    Leave to dry for 24 hours.
     
    • Useful Useful x 2
    • Thanks Thanks x 1
  5. Richard and Ann

    Richard and Ann Funster

    Joined:
    Jan 19, 2014
    Messages:
    1,297
    Location:
    Derbyshire
    Ratings:
    +2,159
    I'm not saying they're wrong, but why is there a picture of a motorhome on Sikaflex 512?

    Perhaps it's for sealing windows or something else :eek: anyway it's immovable now it's cured.

    Screenshot_20180606-111115.png
     
  6. Richard and Ann

    Richard and Ann Funster

    Joined:
    Jan 19, 2014
    Messages:
    1,297
    Location:
    Derbyshire
    Ratings:
    +2,159
    Googling further... I think they're mostly the same product with a few different additives in.
     
  7. scotjimland

    scotjimland Funster Life Member

    Joined:
    Jul 25, 2007
    Messages:
    30,279
    Location:
    Ayrshire
    Ratings:
    +31,285
    the photo of a motorhome doesn't tell you what it's specific application is ,
    each Sika product has a different application.. adhesive, sealer, marine, etc..

    Alden supply Sika 252 + Akitvator and Instructions with the auto dish kit.

    my dish has been on three years, and was still there when I sold the van
     
    • Like it Like it x 2
  8. Ianm18

    Ianm18 Funster

    Joined:
    Jan 15, 2018
    Messages:
    57
    Location:
    Ellington, Morpeth
    Ratings:
    +6
    Mike

    I just completed the fitment of another’s solar panel and I used 512 no problems
     
    • Thanks Thanks x 1
    • Nice One! Nice One! x 1

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice